XGY   Grimsby Mountain, ON Weather Observed At   43-11  N    79-34  W

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2026-09-13	11:00pm			Max		Min
Weather
Temperature		18.1 °C		29.4 °C	2:40pm	18.1 °C	10:59pm
Relative Humidity		67 %		95 %	6:44am	51 %	3:32pm
Dew Point		11.9 °C		22.8 °C	10:23am	11.7 °C	8:50pm
Wind Velocity		266 ° at  2.5 G 9.6 kt		14.8 kt	4:58pm
Pressure		30.022 "		30.023 "	10:59pm	29.826 "	2:50pm
Rainfall Rate		0.0 mm/h		0.2 mm/h	6:00am
Snow On Ground		0 cm
Brightness / Darkness		0 W/m² /  18.58 m/"²		831 W/m²	12:49pm	20.17 m/"²	5:32am
Remarks

Rainfall	Today	0.2 mm	Storm Total	0.0 mm
Snowfall	Today	0.0 cm	Storm Total	0.0 cm

Evapotranspiration

Today

-2.82 mm

Lake Conditions

Water Temperature  20.7 °C

Waves  2 '

ICE FREE

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Meteor Index	8   Random
Aurora Index / Solar	1   Quiet   - 1 nT	Solar Flux   114  sfu  /   S 0    G 0    R 0   /  MUF   24.3 MHz

Sunrise	6:57am	Sunset	7:32pm
Moonrise	N/A	Moonset	N/A	Moon Phase	Waxing Crescent

Grimsby Mountain Weather Maps
Local	Regional	Area	Synoptic
updated H+09 and every 10m	updated H+19 and H+49	updated H+19

Ontario 6-Hour Meteorological Summary

Canadian 6-Hour Meteorological Summaries

CLIMAT Data
Official	Yesterday					2004	2005	2006	2007	2008	2009	Normals & Records
		2010	2011	2012	2013	2014	2015	2016	2017	2018	2019
		2020	2021	2022	2023	2024	2025	2026

Grimsby Mountain Charts

	Sky Quality (Darkness) Meter courtesy of

              

Wx Map	Sat Pix	IR Sat Pix	Radar	Lightning
	Water	Ice

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  This is a privately operated weather station that is part of the Meteorological Service of Canada's official observing network.
Permission to publish the weather statistics found on this website is not required.
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